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The Union Pacific Railroad’s Big Boy 4-8-8-4 steam locomotive is undoubtedly the beast of American railroading history, and this epitome of heavy haulage is now available for Train Simulator with a number of challenging scenarios for the Sherman Hill route.

In the early 1940s, Union Pacific Railroad (UP) sought to build a locomotive capable of hauling heavy freight trains across Wyoming without the need for double heading and helper operations over the 1.55% gradient of Sherman Hill and the Wasatch mountain region. Adaptations of the previous Challenger Class locomotives showed that larger fireboxes, longer boilers and more driving wheels achieved their aims. What followed was the monster Big Boy with its articulated wheel configuration, huge water tank and 68in (173cm) driving wheels.

In 1941, Alco Locomotive Works delivered 20 Big Boys and another five were put into service in 1944. Although rarely run at such a speed, the Big Boy was capable of an 80mph top speed and towards the end of their life were regularly hauling more than 4,000 tons up the Wasatch gradient unassisted. The last revenue service by a Big Boy was in July 1959 and eight of the original 25 locomotives have been preserved in the USA.

The Union Pacific Big Boy V2.0 is available for Train Simulator in the famous UP black livery with accurate locomotive simulation, detailed cab interior, full TSX effects, and new smoke and steam particle emitters.

The Sherman Hills Add-On (available separately) is required to play the scenarios included with this Add-On.

Scenarios

Five scenarios for the Sherman Hill route:

Big Boy Introduction

Big Boy Local Work Granite to Cheyenne

Big Boy on Sherman Hill Part 1

Big Boy on Sherman Hill Part 2

Big Boy working Laramie Cement

More scenarios are available on Steam Workshop online and in-game. Train Simulator’s Steam Workshop scenarios are free and easy to download, adding many more hours of exciting gameplay. With scenarios being added daily, why don’t you check it out now!

great train it is very detailed and put out a o lot of smoke and steam. I like it when when you're shoveling coal the smoke turns black. but there a problom with the front headlight, can someone help me with that.

This is probably the best engine for doing screenshot runs with in the game. The model is great, whistle could be better, but the bell and chugging sounds are great. The cab isn't the best and similarly to the challenger you can barely see out the engineer's forward facing window. The challenger I say is the exact same way just in my opinion has a more realistic whistle. I recommend both the challenger and bigboy but there not the best for doing in-cab driving.

This is one of my favorite US Steam engines created for Train SImulator. HIGHLY detailed cab as well as the exterior of the engine. Realistic sounds when braking. Great horn and bell an blows alot of smoke. This is one of the most highly detailed engines DTG has made along with Challenger(I don't have that BTW). The DLC pack has the Big Boy, rolling stock and scenaros for Sherman Hill. Although one of the scenarios I've tried several times to do but is impossible to do on expert controls without losing all water. I usually drive with simple controls but then you won't et the green checks. Overall this is a great add-on pack! Definitely buy!

I love driving Steam-locs. Unfortunately the BB headlight doesn't work and the HUD information isn't the same as the the technical, Cylinder Cokcs doesn't work and Exhaust/Live-injectors aren't visably adjustable if even adjustable at all; had to use the HUD, to adjust water levels, which indicate a different percentage.

Completion of the CAREER-scenario "Big Boy on Sherman Hill Part 1 CS" is not possible due to AI trains collision at Hermosa. Train UP4774 starts moving on a completely different track as you approach, runs a red signal and then collides with a stationairy AI loco sitting in a sidingin Hermosa.

Unfortunately the BB DLC is really that broken, and my searching on the internet confirmed these issues have been known since 2013....

Dispite all that it's still a fantastic loc to drive, easy to maintain running even at the inclines.

I would like to write something about this Big Boy. BUT I bought it on steam But can not find it in my PC anywhere. But steam tells me its in there. So what can I say??? I will check Recommend as I can not post this if I dont.

The Big Boy is most associated with the UP, and now #4014 is returning to the rails once again in over 60 years. This version of the Big Boy is remarkable, although there are some slight flaws. It comes with a modern boxcar and caboose, the tender coupler stretches out if i start up too fast with a big consist, and the lights dont work. Despite these flaws, the engine is still a nice addition to the game if you wish to buy it.